Impressed-picture medium



July 18, 1939. M. FINKE IHPRESSED-PICTURE MEDIUM Filed Fen. 8, 1937 mvzivroxa Max Fm Ire. WWW--I ATTORNEY lief stamping in such a mounted on the 'minium foil to the time of producing the presumption that by means Patented July 18, 1939 UNITED "STATES PATENT OFFICE 2,166,289 IMPRESSED-PICTUR-E MEDIUM Max Finke, Emmendingen, Germany Application February 8, 1937, Serial No.

In Germany August 13, 1936 I 5 Claims. (c 154-46) which in the finished pressed-figure are to stand out especially bright. The pressing of such foils with positive and negative dies presents no difllculty, and the pressure necessary to effect the rewithout difllculty.

But if the pressing die, by means of which selected parts, or the whole of. the surface of the metal toil to be pressed which is mounted on a backing, are to be impressed is made of yielding material, it is necessary that the foil to be impremed, placed on a support, be likewise soft and the measure be lightly yielding. To this end the thin metal foil has been paper by means of a soft plastic layer. or bed. .This plastic interposed layer, serving as an adhesive, has not only performed the function of binding the metal, especially alupaper, but also at the same of a yielding die the desiredimpression can be pressed in the foil. r

,It has appeared that this interposed binding layer, which at the same time constitutes a plastic .mass to receive the impression does not, in consequence of the uneven contour of the paper surface and alsoby reason of the capacity for absorption of the latter, work well in uniform thicknesses, which is absolutely essential especially in the production of sinus. In both impression and pressure processes a. large percentage oi waste must always be allowed for. In addition there is the possibility that during storage the layer interposed between the paper and the metal foil may, on the paper side, penetrate into the paper fibres. Moreover, the interposed layer loses, in course of time, its plasticity.

In the drawing, the sole figure represents a V cross-sectional view of the material.

The subject of the present invention is an impressed-picture medium in which a thin metal, especially. aluminium foil 5 may be employed which by means of a plastic adhesive is pasted to a base with, however, the distinction that as a case can be produced complete thin impresbase a layer is employed which has no flbrosity. For this there is best adopted a preferably some what thicker metal-preferably aluminium foil 3. This produces, with the aluminium foil to carry, the picture and impression, a second foil, which isadhesively secured to thefirst by means of. the plastic interposed layer 4.

In order. to'obtain a durable or more resistant product, the thin metal, especially aluminium foil,

which is to be impressed and pressed, may be provided with such a metalfoil 3 which is backed with paper I by means of a. normally non-plastic adhesive 2. Thus a product isobtained which consists or paper I, plus a binding layer 2, plus metal foil 3, plus a plastic interposed layer I, and

lastly the picture and engraving carrying thin.

metal toil 5.

The plastic interposed. layer, lying between the two metal foils, and binding the same together, can either remain permanently plastic or can obtain this characteristic by heat treatment during the process of impressing (pressing).

In the latter case there can be produced and impressed (pressed).picture, in which a much better resistance to damage is ofiered than in-aposed layers to be absorbed or evaporated, as for instance a varnished paper, or a cellulose material either mounted on paper or in the form of sheets.

I claim:

1. A backed metal foil for receiving ornamental designs impressed flat in the surface, having a further metal foil interposed between the metal foil and the paper layer serving as base for the backing, and a plastic adhesive layer between the metal foils as well as an adhesive layer .be-

tween the intermediate foil and the paper layer.

2. A. backed aluminum foil for receiving ornamental designs flat impressed in the surface, having a further metal foil interposed between the metal foil and the paper layer serving as base for the backing, and a plastic adhesive layer be-' tween the metal foils as well as an adhesive layer between the intermediate foil and the paper layer.

3. A backed metal foil for receiving ornamental designsflat impressed in the surface, having an aluminumioil interposed between the metal foil and the paper layer serving as base for the Ill backing, and a plastic adhesive layer between the metal toils as well as an adhesive layer between the intermediate foil and the paper layer.

4. A backed aluminum foil for receiving ornamental designs flat impressed in the surface, hav

ing an aluminum foil interposed between the metal foil and the paper layer serving as base for the backing, and a plastic adhesive layer between the metal foils as well as an adhesive layer between the intermediate foil ,and the paper layer.

5. A backed metal foil for receiving ornamental designs fiat impressed in the surface, having a further metal foil interposed between the metal foil and the paper layer servingas base for the backing, vand an adhesive layer between the metal toils which is plastic in the heat and hard at normal temperature, as well as an adhesive layer between the intermediate foil and the paper layer.

MAX FINKE 

